I assume the principal author is Alberto Carnera of Padua U. See: http://www.slac.stanford.edu/spires/find/hep/www?irn=8804559
Defkalion says they got an important clue from U. Padua mass spec results. My guess is that these results are in this unpublished paper. Rossi was probably right that it reveals too much for his purposes. - Jed
